arXiv:2512.23473cs.CV2025-12AAAI被引 1

SC-Net通过空间与通道双视角上下文增强,提升大视差场景下的对应关系精度。

SC-Net: Robust Correspondence Learning via Spatial and Cross-Channel Context

  • 引入自适应聚焦正则化与双边场调整模块,融合空间与通道上下文。
  • 在YFCC100M和SUN3D上相对位姿估计误差降低,外点剔除性能更优。
  • 适合需要高鲁棒性运动场建模的三维重建与视觉定位任务。

近期研究采用卷积神经网络(CNN)作为两视图对应关系学习的主干网络,相比基于多层感知机的方法表现显著更优。然而,通用的CNN主干难以有效聚合全局上下文,且在大视差场景中易导致稠密运动场过度平滑。为此,本文提出SC-Net,通过空间与通道双视角上下文融合,有效解决上述问题。具体地,设计自适应聚焦正则化模块(AFR),增强模型对位置的感知能力并提升对虚假运动样本的鲁棒性,从而生成更精确的运动场;提出双边场调整模块(BFA),同时建模长程依赖并促进空间与通道维度间的交互;最后通过位置感知恢复模块(PAR)从优化后的场中恢复运动向量,确保一致性与精度。大量实验表明,SC-Net在YFCC100M和SUN3D数据集上的相对位姿估计与外点剔除任务中均优于现有最先进方法。源代码已公开于http://www.linshuyuan.com。

原文摘要 · Abstract (English)

Recent research has focused on using convolutional neural networks (CNNs) as the backbones in two-view correspondence learning, demonstrating significant superiority over methods based on multilayer perceptrons. However, CNN backbones that are not tailored to specific tasks may fail to effectively aggregate global context and oversmooth dense motion fields in scenes with large disparity. To address these problems, we propose a novel network named SC-Net, which effectively integrates bilateral context from both spatial and channel perspectives. Specifically, we design an adaptive focused regularization module (AFR) to enhance the model's position-awareness and robustness against spurious motion samples, thereby facilitating the generation of a more accurate motion field. We then propose a bilateral field adjustment module (BFA) to refine the motion field by simultaneously modeling long-range relationships and facilitating interaction across spatial and channel dimensions. Finally, we recover the motion vectors from the refined field using a position-aware recovery module (PAR) that ensures consistency and precision. Extensive experiments demonstrate that SC-Net outperforms state-of-the-art methods in relative pose estimation and outlier removal tasks on YFCC100M and SUN3D datasets. Source code is available at http://www.linshuyuan.com.

对应关系运动场鲁棒性

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